package com.wlz.empty;

/**
 * @author wlz
 * @date 2023-03-02  16:50
 */
public class Test1 {

    public static void main(String[] args) {
        String a = "a";
        String b= null;
        if (a.equals(b)) {
            System.out.println(a);
        }else {
            System.out.println(b);
        }
    }
}
